Merge branch '4.0.0-develop' into entity-web-api-generation

Author: Vitaliy

gradle-tasks/checkstyle/checkstyle.xml

@@ -330,4 +330,8 @@
         </module>
     </module>
     <module name="SuppressWarningsFilter"/>
+    <module name="RegexpHeader">
+        <property name="header" value="^\/\*\n \* Copyright © Magento, Inc."/>
+        <property name="fileExtensions" value="java"/>
+    </module>
 </module>